Composer Nicholas Britell says when he's writing a score, he wants the audience to lose themselves in the film. "Music can have so much power, but you have to be careful with that power." He talks with Terry Gross about finding the right sound for a movie and experimenting with "chopped and screwed" music for 'Moonlight.' Britell's score for 'If Beale Street Could Talk' is nominated for an Academy Award. He also did the score for 'Vice.' Also, John Powers reviews the Netflix series 'Black Earth Rising,' about a Rwandan woman grappling with her past in the wake of the genocide.